1. Which of the following is false about clostridium perfringes -Food poisoning causing strains of cl. perfringes produce heat resistant SporesShow positive naegler reactionMost important toxin is hyaluronidaseCl. perfringes is the most common cause of gas gangreneQuestion 1 of 20 2. Acellular pertusis vaccine contains -Pertactin, flagillary hemagglutinin, cytotoxin, endotoxinFlagillary hemagglutinin, pertusis toxin, fimbriaePertactin, flagillary hemagglutinin, fimbriae, endotox inPertactin, cytotoxin, fimbriae, pertactin,Question 2 of 20 3. All of the following clinical features are associated with enteroviruses PleurodyniaHerpanginaMyocarditisHemorrhagic feverQuestion 3 of 20 4. All of the following statements about Pontiac fever are true, exceptOccurs in EpidemicsPneumonia is most common manifestationAntibiotic therapy is not requiredHas a High Attack RateQuestion 4 of 20 5. Process of tissue culture is known as?Macro propagationChemical propagationVegetative propagationMicro propagationQuestion 5 of 20 6. False about Staphylococcus lugdunensisCauses infection of native valveDoes not produce coagulaseSusceptible to antimicrobialSkin commensalQuestion 6 of 20 7. Which of the following is unique to gram-negative bacteria?FlagellaEndotoxinsCapsulesRibosomesQuestion 7 of 20 8. The earliest identifiable cells of T-Cell Lineage during maturation areCD8+ Pro-T-CollsCD4+ Pre-T-CellsCD8+ Pre-T-CellsCD7 + Pro-T-CellsQuestion 8 of 20 9. Causative organism for gas gangreneE. ColiClostridium welchiiClostridium tetaniStrep. FaecalisQuestion 9 of 20 10. Actinomycetes isFungusA yeast like formGram negative bacteriaram positive bacteriaQuestion 10 of 20 11. Characteristic feature of retiovirus is:RibonucleaseDNA polymeraseRestriction endonucleaseReverse transcriptaseQuestion 11 of 20 12. Actinomycosis is caused by:cid fast. Non-motile bacillusFungusRetrovirusAnaerobic, gram positive, non-acid fast bacteria.Question 12 of 20 13. All of the following are potential pathogens of ororpharynx except:H. influenzaeStreptococcus pneumoniaN. MeningitidesE.coliQuestion 13 of 20 14. Endotoxin of which gram negative bacteria have no part in pathogenesis of disease:Vibrio choleraPseudomonas AerogenosaE.coliKlebsiellaQuestion 14 of 20 15. Immunoglobulin bound on the surface of bacteria mediates phagocytosis by (Phagocytosis causes complement activation by)-Lysosmal burstC3b and FcOxidase actionReceptor mediated endocytosisQuestion 15 of 20 16. An advanced diagnostic technique which has been suggested as an alternative to culture methods is:Latex agglutination.Phase contrast microscopy.Indirect immunofluorscent microscope assays.Direct immunoflurescence.Question 16 of 20 17. Which of the following represents the characteristic cellular infiltrate in delayed type hypersensitivity?EosinophilsNeutrophilsT cells and macrophagesB cells and plasma cellsQuestion 17 of 20 18. Exotoxins are:NoneLipoproteinProtein compoundLipid-polysaccharide complexQuestion 18 of 20 19. Half-Life of free HIV in plasma is:3 months6 hours24 hours12 hoursQuestion 19 of 20 20. The anaphylaxis should be treated first withAnti histaminesAntibioticsSteroidsEpinephrineQuestion 20 of 20 Loading...